tree 44ef73e8f9ac7bdfc71ff3286e6b2715aafbbd9d
parent 62241eb497721be7640e5d9330e60f4a88a4db46
author Roland Dreier <roland@topspin.com> 1113690366 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1113690366 -0700

[PATCH] IPoIB: fix static rate calculation

Correct and simplify calculation of static rate.  We need to round up the
quotient of (local_rate - path_rate) / path_rate.  To round up we add
(path_rate - 1) to the numerator, so the quotient simplifies to (local_rate -
1) / path_rate.

No idea how I came up with the old formula.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>